Home / 392,839,980.52-542,132,260.48-214,233,613.88

Finding the Fourth Proportional to 392,839,980.52, 542,132,260.48 and 214,233,613.88

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Solution

The fourth proportional to 392,839,980.52, 542,132,260.48 and 214,233,613.88 is: 295,649,524.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,839,980.52 : 542,132,260.48 = 214,233,613.88 : x
  2. Step 2: Convert to fraction form
    392,839,980.52/542,132,260.48 = 214,233,613.88/x
  3. Step 3: Cross multiply
    392,839,980.52x = 542,132,260.48 × 214,233,613.88
  4. Step 4: Simplify right side
    392,839,980.52x = 116,142,953,363,563,904
  5. Step 5: Solve for x
    x = 116,142,953,363,563,904/392,839,980.52
  6. Step 6: Final answer
    x = 295,649,524.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.